Not ready for prime time. That seems to be viewers’ verdict on Jay Leno’s new five night a week 10 p.m. gab fest. After a strong debut, the initial ratings are in—and they’re not good. Since the TV season began Sept. 21, he has finished in last place every night, and Monday he claimed a lowest-yet 4.5 million viewers. “The big test will be how he does when repeats begin, and if he sees a surge,” says John Rash of ad firm Campbell Mithun. “If not, it’s particularly troublesome.”